Brent crude at $91 — Prices surge on escalating US-Iran tensions and stalled Hormuz traffic, triggering a broad market sell-off. Sensex drops over 300 points — Opens at 77,418.97, down 285 points or 0.37% from the previous close of 77,728.16. Nifty hovers below 24,300 — Opens at 24,223.85, down 57 points or 0.24% as FII selling adds pressure. Nifty IT and FMCG are top drags — Both sectors slide over...